What was found
NR 1 ENGINE HAS PNEUMATIC LEAK BELOW J-BOX 11:30 POSITION. PRESSURIZED DUCT, NO LEAKS NOTED. NO EVIDENCE OF BLEED AIR LEAKS NOTED.
- Difficulty date
- August 19, 2013
- Submitted
- August 23, 2013
- Operation
- Air carrier
- Aircraft
- N120UA
- Make and model
- Boeing 747422
- Aircraft serial
- 29166
- Aircraft time
- 59,142 hours, 6,851 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Duct
- Condition
- Leaking
- Location
- Nr 1 Engine
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.